From: "Mark A. Greer" <mgreer@mvista•com>
To: Sam Song <samlinuxppc@yahoo•com.cn>
Cc: linuxppc-embedded@ozlabs•org
Subject: Re: 824x Sandpoint with 2.6.x
Date: Wed, 20 Apr 2005 10:46:58 -0700 [thread overview]
Message-ID: <42669592.6080602@mvista.com> (raw)
In-Reply-To: <20050420135401.29160.qmail@web15808.mail.cnb.yahoo.com>
Sam Song wrote:
>"Mark A. Greer" <mgreer@mvista•com> wrote:
>
>
>>>Kernel command line:
>>>console=uart,mmio,0xfdfce500,115200n8
>>>console=ttyS0,115200
>>>root=/dev/ram rw ramdisk_size=200000
>>>ip=192.168.0.3:192.168..2:::sandpoint:et
>>>h0:off panic=1
>>>
>>>
>>>
>><snip>
>>
>>Get rid of the
>>"console=uart,mmio,0xfdfce500,115200n8" part of the
>>cmdline and see what happens (keep the
>>"console=ttyS0,115200" part).
>>
>>
>
>If so, kernel will hang after loading the kernel......
>
Okay, obviously something is wrong. Adding another console line isn't
fixing anything, its just allowing you to flounder on a little further.
IMHO, adding another console line isn't going to help and will only add
confusion.
>I cannot see any active info.Is early console output
>message not enough to find out something useful?
>
>
Sure it does. You have to enable it, then add some progress lines to
help narrow down where you're panic'ing/hanging. You can even use the
progress facility to dump the __log_buf.
I'm taking your unwillingness to use a jtag/cops debugger as indication
that you don't have such a tool!?!?
Mark
next prev parent reply other threads:[~2005-04-20 17:47 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-04-20 13:54 824x Sandpoint with 2.6.x Sam Song
2005-04-20 17:46 ` Mark A. Greer [this message]
-- strict thread matches above, loose matches on Subject: below --
2005-04-22 2:21 Sam Song
2005-04-21 2:40 Sam Song
2005-04-21 19:57 ` Mark A. Greer
2005-04-20 13:59 Sam Song
2005-04-19 13:52 Sam Song
2005-04-19 18:27 ` Mark A. Greer
2005-04-15 2:24 Sam Song
2005-04-18 19:54 ` Mark A. Greer
2005-04-18 19:55 ` Mark A. Greer
2005-04-14 5:01 Sam Song
2005-04-12 4:10 Sam Song
2005-04-13 16:48 ` Mark A. Greer
2005-04-11 9:28 Sam Song
2005-04-11 18:46 ` Mark A. Greer
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